JP2020119749A - Illuminating device - Google Patents

Abstract

To provide an illuminating device that has excellent workability when a light source unit is attached to an appliance body.SOLUTION: An illuminating device 10 comprises an appliance body 20 comprising a top plate part to be attached to an installation part. The illuminating device also comprises: a light source unit 40 attached to the appliance body 20, and comprising a back member on the side opposite to a direction in which light of a light source module is applied; and a position regulating member existing between the top plate part and the back member.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a lighting device.

2. Description of the Related Art Conventionally, there are illumination devices that are directly attached to a ceiling or wall surface, and illumination devices that are embedded and attached to an opening provided in a ceiling or wall face. In such a lighting device, tighten the lighting device fixture body with bolts or screws on the ceiling or wall surface, or set the lighting device fixture body on a hanging bolt arranged from the back of the opening and use a nut. The body of the device is fixed by tightening it.

After fixing the instrument body, the light source unit is attached to the instrument body using the attachment mechanism provided on the instrument body and the light source unit, but if the attachment position is misaligned, the designed optical performance will not be obtained. There is a risk. In addition, in such a lighting device, if the tightening of the device body with bolts or screws is more than an appropriate value, the device body will be deformed, and the members such as the reflector attached to the device body will also be affected by the deformation of the device body. As a result, deformation may occur.

JP, 2017-59485, A

The problem to be solved by the present invention is to provide an illuminating device having good workability in mounting the main body of the fixture and the light source unit.

The illuminating device of the embodiment has a fixture main body having a top plate portion attached to the installation portion. In addition, the light source unit is attached to the instrument body and has a back member on the side opposite to the direction in which the light of the light source module is irradiated, and a position regulating member that is present between the top plate portion and the back member.

According to the lighting device of the embodiment, it is possible to expect an improvement in workability when the light source unit is attached to the fixture body.

It is a perspective view showing the whole lighting installation of one embodiment. It is a top view which shows the fixture main body of the illuminating device of one Embodiment. It is a perspective view which shows the receiving metal fitting of the illuminating device of one Embodiment. It is a perspective view which shows the light source unit of the illuminating device of one Embodiment. It is a perspective view showing a base plate of a lighting installation of one embodiment. It is a perspective view which shows the translucent cover of the illuminating device of one Embodiment. It is a perspective view showing a mounting mechanism of a lighting installation of one embodiment. It is a perspective view which shows the reflector of the illuminating device of one Embodiment. FIG. 4 is a perspective view showing a state in which a positioning metal fitting of the lighting device of one embodiment is arranged at a corner of a reflection plate. It is a perspective view which shows the positioning metal fittings of the illuminating device of one Embodiment. It is a top view which shows the state which attached the reflection plate to the fixture main body of the illuminating device of one Embodiment. It is a side view showing a section of a lighting installation of one embodiment.

An embodiment will be described below with reference to the drawings. FIG. 1 shows a lighting device 10. The illuminating device 10 is a luminaire that is directly attached to or half-embedded or embedded in the installation portion. The installation unit is not limited to the ceiling, but may be a wall surface or the like. Further, the installation portion is not limited to a flat surface, and may be installed so that at least a part of the lighting device 10 is embedded in an opening provided on the ceiling or the wall surface. In the following, the lighting device 10 is installed with the installation portion as an opening provided on the ceiling, and the direction in which light is emitted is defined as downward and the direction opposite to that in which light is illuminated is defined as upward. The lateral direction is defined as the lateral direction with respect to the vertical direction.

The lighting device 10 includes an instrument body 20 attached to the installation portion, a light source unit 40 detachably attached to the instrument body 20, and a reflection plate 60 attached to the instrument body 20. The illumination device 10 in this embodiment is formed in a quadrangular outer shape.

FIG. 2 shows the instrument body 20. The instrument main body 20 is installed in a form in which at least a part is embedded in the installation part, for example, by supporting the installation body such as an opening provided in the ceiling from above the ceiling using a hanging bolt. The instrument main body 20 is integrally formed by pressing one metal plate, for example. The instrument main body 20 has a square-shaped top plate portion 21 and a side surface portion 22 bent downward from the peripheral portion of the top plate portion 21.

In the central area of the top plate portion 21, a pair of installation attachment portions 23 for attaching the instrument body 20 to the installation portion are provided. The installation attachment portion 23 has a plurality of installation attachment holes 24 through which attachment tools such as bolts and suspension bolts are inserted. An attachment tool can be inserted into at least one of the plurality of installation attachment holes 24 and attached to the installation portion. The pair of installation mounting portions 23 are arranged in parallel with one side of the top plate portion 21 facing each other. The installation mounting portion 23 has a structure that protrudes to the upper surface side of the top plate portion 21 via a peripheral step portion, and the pair of installation mounting portions 23 are formed so as to be spaced apart and not to be in contact with each other.

In the center area of the top plate portion 21, there is provided a receiving metal fitting attaching portion 25 to which a pair of receiving metal fittings 26 described later are attached. The bracket mounting portion 25 has a structure that protrudes to the upper surface side of the top plate portion 21 through a peripheral step portion, has a narrow portion 25a at the center, and is continuous so as to cross the surface of the top plate portion 21. Are provided. The bracket mounting portion 25 is provided between the pair of installation mounting portions 23 and orthogonal to the pair of installation mounting portions 23, and a narrow portion 25 a is formed between the pair of installation mounting surfaces 23. ing. The receiving metal fitting mounting portion 25 is provided with a wiring hole 27 between the pair of receiving metal fittings 26 for drawing in a power supply line or the like.

FIG. 3 shows a bracket 26 provided on the bracket mounting portion 25. The receiving metal fitting 26 is a metal fitting for mounting the light source unit 40, which will be described later, to the instrument body 20, and constitutes a mounting/demounting mechanism together with the mounting mechanism 43 of the light source unit 40. The receiving metal fitting 26 has a hook portion 36 and a cover portion 37. In the present embodiment, the pair of receiving metal fittings 26 are arranged side by side on the receiving metal fitting mounting portion 25 provided in the direction orthogonal to the pair of installation mounting portions 23. It is arranged with a space so as to be on the center side of the device 20. Since the cover portion 37 is located on the center side of the lighting fixture 20, it is possible to prevent the power supply line drawn from the wiring hole 27 from interfering with the receiving metal fitting 26.

A plurality of direct-attaching contact portions 28 projecting to the upper surface side of the top plate portion 21 are provided outside the pair of installation attachment portions 23 and the receiving metal attachment portion 25 of the top plate portion 21. The plurality of direct attachment contact portions 28 are portions that come into contact with the installation portion when the lighting fixture 20 is directly attached to the installation portion, and the top surface of the top plate portion 21 such as the pair of installation attachment portions 23 and the bracket attachment portions 25. Among the parts that project to the side, it is the part that projects to the uppermost surface side.

Further, a plurality of protrusions 29 projecting downward are provided on the outer side of the opposing regions of the pair of installation attachment portions 23 of the top plate portion 21. It is desirable that the plurality of protrusions 29 be provided on the installation/attachment portion 23 using, for example, bolts, and that the protrusions 29 be provided in an area outside the bracket attachment portion 25.

In the present embodiment, the plurality of protrusions 29 are substantially trapezoidal flat plate-shaped protrusions formed by cutting and raising the top plate portion 21, and the holes 30 formed by cutting and raising the top plate portion 21. Are formed so as to be adjacent to the protrusion 29. In addition, in the present embodiment, the plurality of protrusions 29 are formed radially around the center of the top plate portion 21. Then, an opening 38 is formed in the top plate portion 21 between the pair of projections 29 formed at the four corners partitioned by the pair of installation mounting portions 23 and the receiving metal fitting mounting portion 25 formed on the top plate portion 21, which will be described later. A wiring member or the like from the light source unit 40 is inserted, and the wiring member is accommodated in the space between the pair of protrusions 29. Further, in the present embodiment, it is desirable that the protrusion widths of the plurality of protrusions 29 be substantially the same in all the protrusions.

The plurality of protrusions 29 are not limited to the form in which all the protrusions shown in the embodiment are cut and raised protrusions. For example, some or all of the protrusions may be formed at the same time when the instrument body 20 is integrally formed by pressing a metal plate, or a protrusion member may be attached to the top plate portion 21 by screwing or the like. May be formed of. In that case, the hole 30 is not formed. Further, in the case of a protrusion that is not cut and raised, its form is not limited to the flat plate-shaped protrusion shown in the embodiment. For example, the protrusion shape may not be a flat plate shape but may be a substantially hemispherical dot shape or a rectangular parallelepiped shape. Further, the plurality of protrusions 29 are not limited to the form radially formed with the center of the top plate portion 21 as the center, and may be formed in a form having no law and scattered.

Further, the top plate portion 21 has a power supply unit 31 for supplying lighting power to the light source unit 40, a terminal block 32 to which a power supply line and a communication line drawn into the instrument body 20 are connected, and a dimming signal is received from the outside. The receiver 33 is provided. The configuration of the receiver 33 is selected according to the specifications of the lighting fixture 10, and may be, for example, a terminal block for a dimming signal or a receiver for a wireless dimming signal. In the present embodiment, the power supply unit 31 is attached to an area along one side of the four sides of the top plate portion 21 that is parallel to the pair of installation attachment portions 23. By attaching the power supply unit 31 to this region, the top plate portion 21 can be reinforced and the deformation of the instrument body 20 can be suppressed.

In addition, in the present embodiment, the terminal block 32 and the receiver 33 are attached to a region in the center direction where the width where the pair of protrusions 29 face each other becomes narrow. The wiring member pulled out from the light source unit 40 is connected to the terminal block 32 and the receiver 33 through the opening 38. By mounting the terminal block 32 and the receiver 33 in this area, a space for accommodating the wiring member is secured. be able to. Further, since the pair of protrusions 29 serve as walls, it is possible to prevent the wiring member from popping out in an unintended direction and interfering with other members.

When the receiver 33 is a receiver for a wireless dimming signal, the wireless dimming control unit 34 is also required, and thus the wireless dimming control unit 34 is also arranged on the top 21. In the present embodiment, the wireless dimming control unit 34 is attached to a region along one side of the four sides of the top plate portion 21 that is parallel to the pair of brackets 26.

The power source unit 31, the terminal block 32, the receiver 33, and the wireless dimming control unit 34 are not limited to the mounting positions in the present embodiment, but these may be installed near the protrusion 29 and from the protrusion 29. When it is installed on the center side of 20, it is desirable to select one having a size that does not protrude below the protrusion 29.

In addition, between the plurality of protrusions 29 of the top plate portion 21 and the pair of installation mounting portions 23, and between the plurality of protrusions 29 and the mounting bracket mounting portion 25, an instrument side mounting hole 35 for mounting a reflection plate 60 to be described later. Is provided. In the present embodiment, three instrument-side attachment holes 35 are provided at one location, but the present invention is not limited to this form, and one or two instrument-side attachment holes 35 may be provided. In the present embodiment, the reflection plate 60 is attached to the device-side attachment hole 35, but the invention is not limited to the reflection plate 60, and a simple decoration frame or frame may be attached.

Next, FIG. 4 shows the light source unit 40. The light source unit 40 in the present embodiment is thin and formed in a quadrangular shape. The light source unit 40 is detachably attached to the lower surface side of the instrument body 20. The light source unit 40 has a light emitting unit (not shown). The light source unit 40 has a rectangular base plate 41, which is a back member, on the side opposite to the side where the light of the light emitting unit is emitted, and a transparent plate attached to the base plate 41 so as to cover the light emitting unit. The optical cover 42 and the pair of attachment mechanisms 43 attached to the pair of brackets 26 of the instrument body 20 are provided.

FIG. 5 shows the base plate 41. The base plate 41 is integrally formed by pressing one metal plate, for example, and is arranged so as to face the top plate portion 21 of the instrument body 20. The base plate 41 has a rectangular plate portion 41a and a peripheral portion 41b provided on the periphery of the plate portion 41a. The peripheral portion 41b is an inner side surface portion 45 that is bent upward from the peripheral portion of the plate portion 41a, a frame portion 46 that is bent from the upper end of the inner side surface portion 45 to the outside of the base plate 41 and is formed substantially parallel to the plate portion 41a, The outer surface portion 47 is provided so as to be bent downward from the outer peripheral portion of the frame portion 46. A hole portion 48 is provided between the frame portion 46 and the outer side surface portion 47, and a fixing portion 49 for fixing a claw portion 53 of the translucent cover 42, which will be described later, inserted into the hole portion 48 has a fixing portion 49 of the outer side surface portion 47. It is arranged at the position of the hole 48.

The fixing portion 49 is formed substantially parallel to the outer side surface portion 47, but is formed to be bendable so as to cover at least a part of the hole portion 48. In this embodiment, the outer side surface portion 47 and the fixed portion 49 are partially connected at two contact points. Further, in the present embodiment, the holes 48 and the fixing portions 49 are provided at two points on each side of the rectangular base plate 41.

Further, downward protruding portions 50a and 50b protruding downward are provided at locations corresponding to central portions of respective sides of the rectangular base plate 41 of the outer side surface portion 47. The downward protrusions 50a are a pair of protrusions that protrude downward from the side where the mounting bracket 43 is disposed, and have a "working" shape with a constriction. In the present embodiment, the protruding tip of the downward protruding portion 50a has an arrow shape. The downward protrusions 50b are a pair of protrusions that protrude downward from the side where the mounting bracket 43 is not disposed, and have a structure that does not have a constriction. In the present embodiment, the downward protruding portion 50a has a "working" shaped constriction, but the present invention is not limited to this. For example, even if it has a constricted shape only on one side such as a "U" shape, or a shape having a protruding portion that projects toward the center of the base plate 41, such as an "L" shape or a substantially "square" shape, good.

FIG. 6 shows the transparent cover 42. The translucent cover 42 is light transmissive and may be light diffusive. The translucent cover 42 has a rectangular lower surface portion 51 and a side surface portion 52 protruding upward from the peripheral portion of the lower surface portion 51. On the upper end side of the side surface portion 52, there is provided a claw portion 53 protruding upward and having a claw formed toward the inside of the translucent cover 42.

Further, the side surface portion 52 is formed with a collar portion 54 projecting to the outside of the translucent cover. The collar portion 54 is formed in the circumferential direction of the quadrangular light-transmitting cover 42, and at the center of each side of the quadrilateral shape, a collar recess 55 is formed that is concave toward the inside of the light-transmitting cover 42. In the present embodiment, the part of the collar recess 55 that rises from the recess is formed so as to project more outward than the collar 54 to the outside of the translucent cover 42.

Further, Y-shaped reinforcing portions 56 having a substantially Y shape are provided at four corners of the translucent cover 42 at an angle of 135 degrees from the surface of the side surface portion 52 toward the outside of the translucent cover 42. The Y-shaped reinforcing portion 56 is formed at the four corners of the translucent cover 42 from the upper end of the side surface portion 52 to the flange portion 54. By connecting with the flange portion 54, the strength of the corner portion of the flange portion 54 can be increased. Damage and deformation can be prevented. Further, it is possible to prevent unintended catching of an object at the corner of the collar portion 54.

As shown in FIG. 4, when fixing the translucent cover 42 to the base plate 41, the translucent cover 42 is installed below the base plate 41, and the claw portions 53 of the translucent cover 42 are set in the holes 48 of the base plate 41. The base plate 41 or the translucent cover 42 is operated so as to be inserted. By inserting the claw portion 53 and engaging the claw portion 53 with the frame portion 46 of the base plate 41, by bending the fixing portion 49 to cover the hole portion 48, the claw portion 53 engaged with the hole portion 48 can be removed. A first fixation is performed to prevent In addition, by engaging the constricted portion of the lower protruding portion 50a of the base plate 41 with the flange recess 55 of the translucent cover 42, the base plate 41 and the translucent cover 42 are fixed in the vertical direction, which is the second fixing. .. It becomes possible to perform the fixing using both the first fixing and the second fixing.

The second fixing has more clearance than the first fixing, and when the first fixing is operating normally, the second fixing does not exert its effect. Also good. In that case, when the first fixing is released due to an external force or breakage of the claw portion 53, the light transmitting cover is fixed by the second fixing.

Consider the movement when releasing the first fixation and the second fixation shown in the present embodiment. In order to release the first fixing, it is necessary to release the engagement between the claw portion 53 formed on the inner side of the translucent cover 42 and the hole portion 48 of the base plate 41. Therefore, a force is required to move the side surface portion 52 of the translucent cover 42 having the claw portion 53 outward. In order to release the second fixing, it is necessary to release the engagement between the flange concave portion 55 of the flange portion 54 of the translucent cover 42 and the constricted portion of the downward protruding portion 50a of the base plate 41. Therefore, a force is required to move the side surface portion 52 of the translucent cover 42 having the collar recess 55 inward or to open the downward protruding portion 50a outward. Therefore, in the present embodiment, both the first fixing and the second fixing cannot be released without applying forces in different directions to the translucent cover 42.

Since the translucent cover 42 is made of a material that transmits light and is not as strong as the base plate 41, it may be deformed by an external force. Generally, an external force unintentionally generated due to a factor other than a human operation is in one direction, and by providing two types of engagement that cannot be released unless a force in a different direction is applied as in the present embodiment, Even if one of the engagements moves in the disengagement direction due to an unintended external force, the other engagement works in a direction in which the engagement is strengthened, and it is possible to prevent the translucent cover 42 from falling off due to an unintended external force. it can.

The first fixing and the second fixing are not limited to the form shown in this embodiment. For example, the directions of the forces required to release the first fixation and the second fixation may be opposite to the directions shown in this embodiment, and the second fixation may be performed downward. The inner protrusion provided on the protrusion 50a may be engaged with the collar 54.

Further, when fixing the translucent cover 42 to the base plate 41, a rubber packing (not shown) is interposed between the frame portion 46 of the base plate 41 and the upper end of the side surface portion 52 of the translucent cover 42. It is possible to closely fix the transparent cover 42. In addition, in the present embodiment, the packing is arranged so as to also cover the Y-shaped reinforcing portions 56 at the four corners of the translucent cover 42, so that it is possible to increase the contact area of the packing at the corners, resulting in a positional shift. Even if occurs, it can be expected to maintain the airtightness of the packing.

Further, in the present embodiment, in a state where the translucent cover 42 is fixed to the base plate 41, the lateral protrusion of the outer side surface portion 47 located on the outermost part of the base plate 41 and the collar portion located on the outermost part of the translucent cover 42 are provided. The protrusion of the collar 54 is the same or the protrusion of the collar portion 54 is large. With this structure, the base plate 41 cannot be visually recognized from the light irradiation side, and therefore the design is good.

The light emitting unit (not shown) includes a light emitting module that is a planar light source. The light emitting module includes a substrate and a plurality of light emitting elements (semiconductor light emitting elements) mounted on the substrate. The light emitting element includes, for example, an LED and an organic EL.

FIG. 7 shows the attachment mechanism 43. The attachment mechanism 43 constitutes an attachment/detachment mechanism together with the receiving metal fitting 26 of the instrument body 20. The attachment mechanism 43 includes an attachment spring 57 that can be attached to and detached from the bracket 26 of the instrument body 20, a spring support member 58 that rotatably supports the attachment spring 57, and a spring that applies a biasing force to the attachment spring 57. The holding member 59 is provided.

FIG. 8 shows the reflector 60. The reflection plate 60 is formed of a metal plate in a rectangular frame shape, and a square opening 75 is formed in the center. An inner reflecting portion 61 is provided on the outer peripheral portion of the opening 75 so as to spread downward toward the light irradiation direction and outward of the reflecting plate 60. Further, on the lower end side of the inner reflecting portion 61, an outer reflecting portion 62 provided so as to spread upward toward the outer side of the light irradiation direction and outward of the reflecting plate 60, and an upper end of the outer reflecting portion 62. The outer edge portion 63 is provided on the side.

Further, on the outer peripheral portion of the opening 75 of the reflection plate 60, a mounting piece portion 64 is provided so as to protrude upward on the side opposite to the light irradiation direction. At the upper end of each attachment piece 64, a bent portion 65 is formed by bending in the inner peripheral direction of the opening 75 of the reflection plate 60. The bent portion 65 has a trapezoidal plate portion 73 having a width wider than the central portion of the bent portion 65 toward the opening 75 at both ends, and an outer slant portion 74 is formed on the outer side of the trapezoidal plate portion 73. It is provided. Further, the trapezoidal plate portion 73 is provided with a reflecting plate side mounting hole 66. When viewed from the side, the mounting piece portion 64 and the bent portion 65 of each trapezoidal plate portion 73 are connected in a substantially L shape, and the bent portion 65 and the virtual surface of the opening 75 are substantially parallel surfaces. Is formed.

When the reflection plate 60 is attached to the instrument body 20, the reflection plate side attachment hole 66 of the reflection plate 60 is aligned with the instrument side attachment hole 35 of the top plate portion 21 of the instrument body 20. The reflector plate 60 is attached to the instrument body 20 by fixing the top plate portion 21 of the instrument body 20 and the bent portion 65 of the reflector plate 60 with, for example, screws. In this embodiment, the trapezoidal plate portion 73 is provided with the three reflecting plate side mounting holes 66, but the present invention is not limited to this configuration. For example, the reflector-side mounting hole 66 may have one or two configurations.

Further, as shown in FIG. 9, a positioning metal fitting 67 used for alignment at the time of attachment to an installation portion having an opening may be attached to the rectangular reflection plate 60. The positioning metal fitting 67 is a metal fitting that is positioned so as to fit inside the opening, and is attached to the corners of the outer edge portion 63 corresponding to the four corners of the reflection plate 60 in the present embodiment.

As shown in FIG. 10, the positioning metal member 67 includes a first plane 68 formed in parallel with the installation portion, a second plane 69 formed in the vertical direction from the first plane, and a second plane 69 formed from the first plane 68. And a third plane 70 formed in the opposite vertical direction. In the present embodiment, the second plane 69 and the third plane 70 are formed on the two opposite sides of the first plane 68, respectively. Further, a positioning metal fitting opening 71 is provided on the first plane 68, and the positioning metal fitting opening 71 is formed over a portion where the first flat surface 68 and the third flat surface 70 intersect.

The positioning metal fittings 67 are attached to the corners of the outer edge portion 63 corresponding to the four corners of the reflection plate 60. As shown in FIG. 9, a caulking portion 72 is provided on the outer edge portion 63 of the reflection plate 60 so as to be bendable, and the caulking portion 72 and the positioning metal fitting opening 71 of the positioning metal fitting 67 are adjacent to each other and the positioning metal fitting 67 is formed. The positioning metal fitting 67 is arranged so that the third plane 70 is located closer to the opening 75 side of the reflection plate 60 than the outer edge 63 of the reflection plate 60. After that, the crimping portion 72 is bent and inserted into the positioning metal fitting opening 71, so that the metal fitting 67 is fixed to the reflection plate 60. This makes it possible to install the positioning fitting 67 at low cost without welding or screwing. At this time, the positioning metal fitting opening 71 needs to be larger than the caulking portion 72. At this time, the third flat surface 70 of the positioning metal fitting 67 and the outer edge portion 63 of the reflecting plate 60 are formed in parallel, and the positioning of the positioning metal fitting 67 is performed by bringing the outer edge portion 63 and the third flat surface 70 of the positioning metal fitting 67 into contact with each other. It is desirable to be able to.

In the present embodiment, the first flat surface 68 of the positioning fitting 67 is formed in a substantially L shape, and two second flat surfaces 69 and two third flat surfaces 70 are formed along each of the two sides of the L shape. However, it is not limited to this form. The first plane 68 may be formed in a square shape or a rectangular shape, and the second plane 69 and the third plane 70 may be one each.

Next, consider the movement when the lighting device 10 is mounted by using the opening provided on the ceiling as the installation portion. When performing the installation work, as shown in FIG. 11, the reflection plate 60 is attached to the instrument body 20. In the present specification, good workability is a general term for good workability during installation work. For example, it has a structure that does not easily deform, so it does not require extra care during installation, so workability is good, and a structure that allows easy alignment at the time of installation does not require re-installation, so workability is good. Or

In the present embodiment, the plurality of protrusions 29 in the vicinity of the device-side attachment hole 35 on the top plate portion 21 of the device body 20 are formed radially around the center of the top plate portion 21. The outer slanted portions 74 of the trapezoidal plate portions 73 of the bent portion 65 of the reflection plate 60 are formed substantially parallel to the radial direction of the protrusions 29. Therefore, when attaching the reflection plate 60 to the instrument body 20, by bringing the outer slant portion 74 into contact with the projection 29, the reflection plate 60 can be easily guided to a predetermined position for horizontal alignment and centering. Good workability. Further, in the present embodiment, the device-side mounting hole 35 is provided near the protrusion 29, and the reflector-side mounting hole 66 is provided near the outer slant portion 74, so that the hole positions can be adjusted at the same time. Has become.

Further, the plurality of protrusions 29 are substantially trapezoidal protrusions when viewed from the side. When the instrument body 20 and the reflector plate 60 are arranged so that the instrument-side attachment hole 35 of the instrument body 20 and the reflector-side attachment hole 66 of the reflector plate 60 are aligned with each other, the tops of the plurality of protrusions 29 having a substantially trapezoidal shape are arranged. By bringing the inclined surface located outside the plate portion 21 into contact with the mounting piece portion 64 and the bent portion 65 of the reflection plate 60, the reflection plate 60 is guided to a predetermined position, and with respect to the top plate portion 21 of the lighting fixture 20. Vertical alignment and centering can be done easily, and workability is good.

After the reflection plate 60 is attached to the instrument body 20, the instrument body 20 is arranged in the opening provided in the ceiling which is the installation portion. The opening size of the opening to be embedded needs to be larger than that of the fixture body 20 and smaller than the outer edge portion 63 of the reflection plate 60 that is the outermost part of the lighting device 10. Further, when the positioning metal fitting 67 is provided on the reflection plate 60, it is desirable that the second flat surface 69 of the positioning metal fitting 67 is configured to fit within the opening.

After arranging the instrument main body 20 in the opening, a pair of suspension bolts previously installed in the structure further above the opening is passed through the installation attachment holes 24 of the pair of installation attachment portions 23 of the instrument main body 20. A nut is screwed onto the tip of the hanging bolt that is inserted through the lower surface of the instrument body 20, and the instrument body 20 is tightened to the installation portion side with the nut. When the instrument body 20 is tightened upward with the nut, the outer edge portion 63 of the reflection plate 60 comes into contact with the surface outside the opening portion of the installation portion, and the reflection plate 60 covers the opening portion from the outside, so that the light irradiation is performed. The opening can be hidden from the direction. At this time, when the positioning fitting 67 is provided on the reflection plate 60, the installation position of the lighting device 10 can be adjusted by aligning the second flat surface 70 of the positioning fitting 67 with the edge of the opening.

When the instrument body 20 is tightened upward with the nut, the instrument body 20 is deformed when the amount of tightening of the instrument body 20 upward is equal to or more than an appropriate value. In particular, when mounting is performed with at least a part embedded in the opening, since the outer edge portion 63 of the reflection plate 60 abuts on a surface outside the opening of the installation portion and movement is restricted, The stress transmitted to the reflection plate 60 cannot be released, and the reflection plate 60 may be deformed.

At this time, in the instrument body 20, the pair of installation attachment portions 23 around the installation attachment hole 24 of the top plate portion 21 through which the bolt is pulled is pulled toward the installation portion side, so that the pair of installation attachment portions 23 and the area therebetween are formed. Deform. Since the peripheral area of the top plate portion 21 is surrounded by the side surface portion 22 having a relatively strong structure, it is less deformed than the central area. Therefore, the power supply unit 31 and the wireless dimming control unit 34 are attached near the side surface portion 22 in the peripheral region where the deformation is small.

Further, a receiving metal fitting 26 for mounting the light source unit 40 is attached to a central region of the top plate portion 21 of the instrument body 20. When the light source unit 40 is attached to the receiving metal fitting 26, the weight of the light source unit 40 pulls the receiving metal fitting mounting portion 25 around the receiving metal fitting 26 of the top plate portion 21 downward. Although this pulling force is a repulsive force to be pulled upward by the bolt and nut described above, it is weaker than the pulling force.

In the present embodiment, the pair of installation mounting portions 23 that are pulled upward by a strong force are not connected to each other, and the bracket mounting portion 25 that is pulled downward by a weak force crosses the surface of the top plate portion 21. Due to the connected structure, deformation is suppressed by providing asymmetrical reinforcement with a difference in reinforcement between a portion pulled up by a strong force and a portion pulled by a weak force.

Specifically, as described above, in the pair of installation mounting portions 23 that are pulled upward with a strong force, a strong force that displaces upward is applied to the pair of installation mounting portions 23 and the area between them, but the pair of installation mounting portions 23 The stress is dispersed by adopting a structure in which they are not connected to each other. This distribution of the stress makes it possible to suppress the deformation of the region between the pair of installation mounting portions 23. Further, there is a receiving metal fitting mounting portion 25 that is pulled downward in the area between the pair of installation mounting portions 23, and an opposite force is generated in this portion, which is expected to further suppress deformation. it can.

Further, in the present embodiment, the top plate portion 21 is reinforced by the structure in which the reflection plate 60 is attached to the equipment body 20 in a state where the top plate portion 21 of the equipment body 20 and the bent portion 65 of the reflection plate 60 are in surface contact with each other. However, the deformation of the instrument body is suppressed. The top plate portion 21 and the bent portion 65 are in surface contact with each other in the range from the vicinity of the side surface portion 22 of the top plate portion 21 to the vicinity of the end portion of the protrusion 29 on the inner side of the instrument body 20. As a result, the reflection plate 60 can be attached to a place near the installation attachment portion 23 that is pulled by a strong force during displacement, and the amount of displacement at the attachment positions of the instrument body 20 and the reflection plate 60 can be suppressed. ..

In addition, as in the present embodiment, the reflection plate 60 is attached to the device book 20 in a state where the top plate portion 21 of the device body 20 and the bent portion 65 of the reflection plate 60 are in surface contact with each other. It is possible to secure a large contact area between the main body 20 and the reflection plate 60 and collect the displacement when the reflection plate 60 is displaced in the bent portion 65, and the bent portion 65 becomes large, but is connected to the bent portion 65. The displacement transmitted to the inside portion 61 and the outside reflecting portion 62, which function as the reflecting plate of the reflecting plate 60, is reduced, and the displacement suppressing effect can be obtained.

Further, as in the present embodiment, the reflection plate 60 is attached to the instrument book 20 in a state where the top plate portion 21 of the instrument body 20 and the bent portion 65 of the reflection plate 60 are in surface contact with each other. It is not necessary to provide an opening or the like for attaching the reflection plate 60 to the peripheral portion of the plate portion 21, and the bracket mounting portion 25 of the top plate portion 21 can be provided up to the vicinity of the side surface portion 22 of the top plate portion 21. Become. Thereby, it becomes possible to suppress the deformation due to the stress pulled upward and downward of the flat-plate-shaped top plate portion 21.
Further, by providing the projections 29 obtained by cutting and raising the top plate portion 21 on the top plate portion 21 of the instrument main body 20, the top plate portion 21 can be reinforced and deformation of the instrument main body can be suppressed.

Further, as in the present embodiment, by disposing the bent portion 65 of the reflection plate 60 so as to cover the hole portion 30 adjacent to the cut and raised projection 29, the cut and raised projection 29 can be cut and raised by an external force. It can be prevented from being released. In this embodiment, the holes 30 of the adjacent cut-and-raised protrusions 29 are not formed in the same direction. In other words, when considering two adjacent cut-and-raised protrusions 29, an external force necessary to release the cut-and-raised state of the cut-and-raised protrusion 29 on one side and the cut-and-raised state of the cut-and-raised protrusion 29 on the other side are released. The external forces needed for the different forces need to be different. This structure prevents the cut-and-raised state of all the cut-and-raised projections 29 from being released at one time by an external force.

After the fixture body 20 to which the reflection plate 60 is attached is attached to the installation portion, the light source unit 40 is attached to the fixture body. In this case, the mounting spring 57 of the mounting mechanism 43 of the light source unit 40 is hooked on the receiving metal fitting 26 of the instrument body 20, and then the light source unit 40 is pushed up. As a result, the mounting spring 57 contacts the spring pressing member 59 and rotates while elastically deforming, and when the rotating mounting spring 57 exceeds the predetermined neutral point, the light source unit 40 is pulled in the direction of pulling up to the instrument body 20. Due to the force, the light source unit 40 is attached to the instrument body 20.

At this time, since the receiving metal fitting 26 for attaching the light source unit 40 is attached to the central area of the top plate portion 21 of the instrument body 20 as described above, the receiving metal attachment portion 25 of the top plate portion 21 is attached to the receiving metal fitting 26. However, since the mounting mechanism 43 of the light source unit 40 has a biasing structure using the mounting spring 57, the mounting mechanism 43 absorbs the influence of the position shift of the receiving metal fitting 26, etc. The light source unit 40 can be mounted at the position.

Further, at the time of this attachment, the projection 29 of the instrument main body 20 contacts the base plate 41 of the light source unit 40 to act as a position regulating member that is aligned in the vertical direction with respect to the top plate portion 21. In the present embodiment, as shown in FIG. 12, the protrusion 29 contacts the frame portion 46 of the base plate 41 to perform the alignment.

When the projection 29 is formed by cutting and raising the top plate portion 21 as in the present embodiment, the top plate portion 21 is also reinforced by the projection 29 as described above. When the light source unit 40 is mounted on the instrument body 20, it is possible to realize a moderation with a sense of rigidity and an appropriate mounting sound that does not cause anxiety when the light source unit 40 is mounted on the device body 20. It is desirable that the protrusion widths of the protrusions 29 be substantially the same so that these effects can be stably obtained.

Further, as in the present embodiment, since the projection 29 of the top plate portion 21 of the device body 20 is flat, the projection 29 of the device body 20 and the light source unit 40 when the light source unit 40 is attached to the device body 20. The contact area with the base plate 41 can be reduced. As a result, since it is not hermetically sealed by the portion for alignment and does not hinder the flow or convection of air, it is possible to suppress the temperature rise of the light source unit 40 and suppress the decrease in luminous efficiency and luminous flux. Is possible.

In addition, in the present embodiment, the projection 29 serving as the position regulating member is provided on the instrument body 20 side, but the position regulating member may be provided between the instrument body 20 and the light source unit 40, and is limited to this form. It is not something that will be done. It may exist on the light source unit 40 side, or the position regulating member may exist as an individual member and may be arranged between the two when the light source unit 40 is attached to the instrument body 20.

When removing the light source unit 40 attached to the fixture body 20, the light source unit 40 is pulled downward from the lower surface side to release the fixing of the light source unit 40 to the lighting fixture 20. Specifically, the mounting spring 57 of the mounting mechanism 43 of the light source unit 40 is fixed by the spring pressing member 59 in a state in which the mounting spring 57 of the mounting mechanism 43 of the lighting device 20 is hooked on the receiving metal fitting 26 of the lighting device 20. Need to cancel. Therefore, it is desirable to pull the two opposite sides on which the mounting mechanism 43 of the light source unit 40 is arranged downward. At this time, since the mounting mechanism 43 cannot be visually confirmed from the lower side, it is difficult to specify the location. However, in the present embodiment, the downward protruding from the location corresponding to the central portion of each side of the rectangular base plate 41 of the light source unit 40. The projecting portion 50a projects downward from the side where the mounting bracket 43 is arranged, and since the downward projecting portion 50a can be used as a mark, the location can be easily specified. In addition, the protruding tip of the downward protruding portion 50a has a substantially arrow shape, and since the direction in which the light source unit 40 is operated when the fixing is released is visually apparent, workability is also good.

Further, the projecting tip of the downward projecting portion 50a may be provided with an arrow-shaped or triangular-shaped structure in the downward projecting portion 50a instead of the substantially arrow-shaped structure. This structure may be provided on the lower protruding portion 50a by applying a sticker or printing, or may be formed by sheet metal processing to form the shape of the concave portion, the convex portion, and the hole portion. By making the structure an arrow or a triangle, the direction in which the light source unit 40 is operated at the time of releasing the fixation can be shown as described above, but a shape such as a circle, a square, or a star may be used.

Further, in the present embodiment, the center of gravity of the lighting fixture 10 exists near the center when the light source unit 40 and the reflection plate 60 are attached to the fixture body 20. Specifically, it exists near the center of the pair of brackets 26 of the tool body 20 to which the tool body 20 and the light source unit 40 are mounted, or near the center of the pair of mounting mechanisms 43 of the light source unit 40. In the present embodiment, the position of the center of gravity can be obtained by disposing the power supply unit 31 in the instrument body 20. Since the position of the center of gravity exists near the center of the lighting fixture 10, it is possible to remove the light source unit 40 from the fixture body 20 without causing a feeling of strangeness that one side is light or heavy. Further, in the present embodiment, the bracket 26 and the mounting mechanism 43 for mounting the light source unit 40 on the instrument body 20 are configured with a pair of the same ones and are centered on the center of gravity. In other words, the center of gravity can be easily and inexpensively realized without changing the structure of the mounting member on one side for adjusting the center of gravity.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the scope of equivalents thereof.

For example, in the above-described embodiment, an example in which the opening provided in the ceiling is installed as the installation portion is shown. However, the opening may be provided on the wall surface or the ceiling without the opening. Alternatively, it may be mounted directly on the wall. In the case of mounting on a wall surface, the upward direction shown in this embodiment corresponds to the side and the direction opposite to the light irradiation direction, and the downward direction corresponds to the side and the light irradiation direction.

In the case of direct mounting, the fixture main body 20 of the lighting device 10 is arranged on the installation portion such as a ceiling or a wall surface, and, for example, bolts are attached to the installation attachment holes 24 of the pair of installation attachment portions 23 of the fixture main body 20. Through, the nut is screwed onto the tip of a bolt that is inserted through the lower surface of the instrument body 20, and the instrument body 20 is tightened upward with the nut. When the instrument body 20 is tightened upward with a nut, the direct attachment contact portion 28 of the top plate portion 21 of the instrument body 20 first comes into contact with the installation portion.

10 Lighting Device 20 Fixture Main Body 21 Top Plate Part 23 Installation Mounting Part 25a Receiving Metal Fitting Mounting Part 26 Receiving Metal Fitting 29 Protrusion 35 Fixture Side Mounting Hole 40 Light Source Unit 41 Base Plate 42 Translucent Cover 43 Mounting Mechanism 49 Fixing Part 50a Lower Protruding Part 53 Claw Part 60 Reflector 66 Reflector side mounting hole 67 Positioning metal fitting

Claims (5)

An instrument main body having a top plate portion attached to the installation portion;
A light source unit attached to the fixture body and having a back member on the side opposite to the direction of light emitted from the light source module;
A position restricting member existing between the top plate portion and the back member;
A lighting device including. The position regulating member,
The lighting device according to claim 1, wherein a pair of installation attachment parts for attaching the fixture body to the installation part are present outside an area where they face each other. The position regulating member,
The lighting device according to claim 1 or 2, wherein the lighting device is provided in either one of the main body of the fixture and the light source unit. The lighting device according to any one of claims 1 to 3, wherein the position in the vertical direction with respect to the installation portion is regulated by the top plate portion or the back member contacting the position regulation member. .. The lighting device according to claim 1, wherein the position regulating member is a cut-and-raised protrusion formed by cutting and raising the top plate portion or the back surface member.

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